78=b+4

Solution for 78=b+4 equation:

Simplifying
78 = b + 4

Reorder the terms:
78 = 4 + b

Solving
78 = 4 + b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-1b' to each side of the equation.
78 + -1b = 4 + b + -1b

Combine like terms: b + -1b = 0
78 + -1b = 4 + 0
78 + -1b = 4

Add '-78' to each side of the equation.
78 + -78 + -1b = 4 + -78

Combine like terms: 78 + -78 = 0
0 + -1b = 4 + -78
-1b = 4 + -78

Combine like terms: 4 + -78 = -74
-1b = -74

Divide each side by '-1'.
b = 74

Simplifying
b = 74